Decided to answer this time and blast a telemarketer.
Asked for me by my first name, which is publicly available. I asked who is calling. The man said he was representing the "Delaware State Fraternal Order of Police Lodge." (It's interesting that the caller id doesn't say that and also several people here reported the number called about insurance.)
I did not raise my voice, but informed him I was not interested, to stop calling, and informed them I was on the Do Not Call Registry. The man stopped talking immediately and was not rude or abusive. I think he said "okay" before I hung up.
Even if they were the Delaware Fraternal Order of Police Lodge, which I doubt, no one should ever agree to donate, promise to pay, or give out any personal information on the phone anyway.
"They" just called my house. Asked for me, Zach. I am only 21. So it feels weird that they know my name. I still live with my mother. I don't go online much. The caller ID showed just the number exactly as I have written it: 3028041033 302-804-1033